The phrase "nose in air" refers to an attitude of superiority or arrogance, often accompanied by disdain for others. There are several synonyms that can convey this same meaning, including "haughty," "snobbish," "condescending," "pompous," "superior," and "uppity." These words all suggest a sense of entitlement or inflated self-importance, and can refer to individuals who feel they are better than others because of their social status, wealth, or education. Such attitudes can be off-putting and create tension in social situations. It's important to be mindful of how we come across to others and strive to treat everyone with respect and kindness, regardless of any perceived differences.